Old-Fashioned Molasses Bars are basically soft spiced molasses cookie batter baked in a pan and sliced like brownies. They’re thick, tender, and the flavor is that classic mix of ginger and cinnamon with deep molasses.
I like this version because it stays chewy in the middle with lightly set edges, and it doesn’t turn cakey if you mix it carefully. The optional vanilla glaze is simple but worth it if you want a sweeter finish.
These are especially good on a holiday cookie tray or anytime you want an easy bar dessert that feels a little old-school. For me, they’re best sliced small and served with coffee or tea.
Why You’ll Love This Recipe
Soft and Chewy: These bake up like a thick molasses cookie, not a dry cake bar. If you pull them on the earlier side, the centers stay nice and chewy.
Real Spice Flavor: Ginger, cinnamon, cloves, and nutmeg give that classic warm spice taste that works so well with molasses.
Easy Pan Dessert: No scooping dough or baking in batches. You spread it once, bake it once, and you’re done.
Glaze Optional: I like a light drizzle for a sweeter finish, but the bars are good plain too. It’s nice to have the choice depending on who you’re serving.
Old-School Add-Ins: Raisins or walnuts fit right in here if you want a more vintage, bakery-case feel.
Ingredients You’ll Need
Bar Batter
- All-purpose flour: I use regular flour here. Spoon and level if you tend to pack flour into the cup, because too much can make the bars a little dry.
- Baking soda: This is what gives you that classic molasses cookie lift. Make sure it’s fresh-ish so the bars rise and don’t taste flat.
- Ground ginger: Ginger is the main spice note I want in molasses bars. If you like a stronger ginger bite, you can bump it up a little.
- Ground cinnamon: Cinnamon rounds everything out and keeps the spice mix tasting familiar.
- Ground cloves: A little goes a long way. Too much can take over fast, so I keep it modest.
- Ground nutmeg: I like nutmeg here for that warm background flavor. Pre-ground is totally fine.
- Fine salt: Don’t skip it. It keeps the sweetness and molasses from tasting heavy.
- Unsalted butter: Softened butter creams better with the brown sugar and helps the bars stay tender. If your butter is melting, chill it a bit before you start.
- Brown sugar: Brown sugar makes these taste more old fashioned and keeps the texture moist. Dark brown sugar works too if you want an even deeper flavor.
- Molasses: I strongly prefer dark molasses for the classic taste. I avoid blackstrap unless I want that sharper, slightly bitter edge.
- Eggs: Eggs help the bars set and slice cleanly. Let them come to room temp if you can, but it’s not a deal breaker.
- Buttermilk: Buttermilk makes the batter smooth and helps the crumb stay soft. If you don’t have it, the milk-and-vinegar trick works well.
- Vanilla extract: Vanilla makes the spice taste a little more rounded. I use regular vanilla extract, nothing fancy needed.
- Nonstick spray or butter: Grease the pan well, especially the corners. Parchment is great too if you want easy lifting and cleaner slices.
Optional Glaze
- Powdered sugar: This is the base of the glaze and it sets up quickly. Sift it if it’s lumpy, but I usually just whisk aggressively.
- Milk: Start with a little, then add more only if you need it thinner. A thicker glaze looks nicer and doesn’t soak in as much.
- Vanilla extract: Just enough to give the glaze that simple bakery-style vanilla flavor.
- Salt: A tiny pinch keeps the glaze from tasting one-note sweet. It matters more than you’d think.
Recipe Instructions
- Preheat the oven: Heat the oven to 350°F. Grease a 9 x 13-inch baking pan well, and line it with parchment if you want easy removal.
- Mix the dry ingredients: In a medium bowl, whisk together the flour, baking soda, ginger, cinnamon, cloves, nutmeg, and salt. Set aside.
- Cream the butter and sugar: In a large bowl, beat the softened butter and brown sugar until light and fluffy.
- Add the eggs: Beat in the eggs one at a time, mixing after each one until combined.
- Add the molasses: Mix in the molasses and vanilla until smooth.
- Add the dry ingredients: Add the dry ingredients in two additions, alternating with the buttermilk. Mix just until you don’t see dry streaks.
- Spread the batter: Scrape the batter into the prepared pan and spread it into an even layer, reaching all the corners.
- Bake: Bake for about 22 to 28 minutes, until the top springs back lightly and a toothpick comes out with a few moist crumbs.
- Cool: Let the bars cool completely in the pan before glazing or slicing.
- Glaze and slice: Whisk the powdered sugar, milk, vanilla, and salt until smooth, then drizzle over the cooled bars. Let the glaze set for about 10 minutes, then slice and serve.
Some of my tips!
This is the part that really makes a difference. If you only read one section, make it this one because this is where I share the little trick that helps the recipe turn out so well.
Recipe Tips & Tricks
Use dark molasses, not blackstrap. Dark molasses gives you that classic old-fashioned flavor. Blackstrap can make the bars taste bitter and a little harsh.
Stop mixing as soon as the flour disappears. Overmixing can push these into a more cakey texture. I mix just until the batter looks even, then quit.
Bake on the lower end for chewier bars. If you want a softer center, start checking early and pull them when a toothpick has a few moist crumbs. They’ll keep setting as they cool.
Cool completely before slicing. These slice much cleaner once they’re fully cool, especially if you’re adding glaze. Warm bars tend to stick to the knife and look messy.
No buttermilk is fine. Mix milk with a little vinegar or lemon juice and let it sit for a few minutes. I do this all the time when I don’t feel like buying buttermilk.
Add-ins are easy here. Raisins or chopped walnuts give a more old-fashioned feel. Keep the pieces small so the bars still cut neatly.
Make some touches!
There are plenty of easy ways to serve this depending on the occasion. Keep it simple, or add a few small touches to make it feel a little more special.
Serving Suggestions
- Coffee or espresso: These are really good with coffee, especially if you glaze them. I like them best with black coffee or a latte.
- Tea: Chai, English breakfast, or a simple black tea works well with the spice. This is my go-to when I’m serving these in the afternoon.
- Milk: A cold glass of milk is classic with molasses cookies, and it works the same way here. It’s nice if you keep the bars unglazed.
- Ice cream: Serve a bar with vanilla ice cream on the side if you want a more dessert-y plate. Warm the bar for a few seconds first if you like it soft.
Save it for later
This section covers how to store leftovers and what parts of the recipe you can prepare ahead of time.
Storage and Make Ahead
Store the bars covered at room temperature for 2 to 3 days. If your kitchen runs warm, I usually move them to the fridge so the glaze stays neat.
Store leftovers covered in the fridge for up to 5 days. The bars get a little denser cold, which I actually like. Let them sit out for 10 to 15 minutes if you want them softer.
You can make this recipe ahead by baking the bars a day early, then glazing the next day right before you slice. The glaze looks fresher that way.
If you want them longer-term, freeze individual portions in an airtight container. Thaw in the fridge overnight or on the counter for an hour or two before serving.
A few quick answers
This section covers a few extra details that may help before you head to the recipe card.
Recipe FAQs
Can I use blackstrap molasses?
You can, but it tastes noticeably more bitter and sharp. I stick with dark molasses for the classic flavor most people expect in molasses bars.
How do I know when the bars are done?
The top should spring back when you press lightly, and a toothpick should come out with a few moist crumbs. If it comes out wet, give it a few more minutes.
Can I make these without buttermilk?
Yes. Use milk mixed with vinegar or lemon juice and let it sit for about 5 minutes before adding it to the batter. It’s not exactly the same, but it works well.
Do I have to glaze them?
No, and I skip it when I want a more “cookie bar” feel. If you’re serving them on a platter, the glaze is nice because it makes them look a little more finished.
Can I add raisins or nuts?
Yes. I like about a handful or two of raisins or chopped walnuts mixed in at the end, as long as the pieces aren’t huge so the bars still slice cleanly.
You might also like
Before you go, take a look at a few other recipes below the recipe card. They use similar ingredients in a different way and are worth saving too.
MORE DINNER RECIPES TO TRY
Old-Fashioned Molasses Bars
INGREDIENTS
Bar Batter
- 2 cups all purpose flour
- 1 1/2 tsp baking soda
- 1 tsp ground ginger
- 1 tsp ground cinnamon
- 1/4 tsp ground cloves
- 1/4 tsp ground nutmeg
- 1/2 tsp fine salt
- 3/4 cup unsalted butter softened
- 1 cup packed brown sugar
- 3/4 cup molasses
- 2 large eggs
- 1/2 cup buttermilk
- 1 tsp vanilla extract
- nonstick spray or butter for pan.
Optional Glaze
- 1 cup powdered sugar
- 2 tbsp milk
- 1/2 tsp vanilla extract
- pinch of salt.
INSTRUCTIONS
Prep and Mix
- heat oven to 350 F and grease a 9 x 13 inch baking pan then optionally line with parchment
- whisk flour baking soda spices and salt in a bowl
- cream butter and brown sugar until light and fluffy then beat in eggs one at a time
- mix in molasses and vanilla until smooth.
Bake and Finish
- add dry ingredients in two additions alternating with buttermilk and mix just until no dry streaks remain then spread batter evenly in pan
- bake until top springs back and a toothpick comes out with a few moist crumbs about 22 to 28 minutes
- cool completely in pan
- whisk glaze ingredients until smooth and drizzle over cooled bars then set 10 minutes and slice.
