Flourless Peanut Butter Blondies

Why These Flourless Peanut Butter Blondies Are a Go-To Dessert

I’ve made a lot of flourless desserts over the years, and these peanut butter blondies are one of my favorites. They’re rich, chewy, and packed with peanut butter flavor, but they don’t require any special flours or hard-to-find ingredients. With a handful of pantry staples, you get a dessert that tastes like a classic blondie but happens to be gluten-free. Chocolate chips add sweetness throughout, and flaky sea salt on top gives a salty crunch that makes every bite irresistible.

Why You’ll Love These Flourless Peanut Butter Blondies

• Intense peanut butter flavor in every bite, no flour to dilute it.
• Chewy, tender texture that stays soft in the center.
• Simple ingredients you probably already have, and no special equipment needed.

Key Ingredients for These Peanut Butter Blondies

• Natural peanut butter, Use drippy natural peanut butter with just peanuts and salt. Stir it well until smooth and creamy; dry or separated peanut butter will make the blondies crumbly.
• Pure maple syrup, This gives sweetness without refined sugar. Make sure it’s at room temperature so it mixes evenly with the other ingredients.
• Chocolate chips, Stir in 1/2 cup and sprinkle the rest on top for pockets of melted chocolate. Guittard chips are my go-to, but any good-quality chip works.

Kitchen Tools for These Peanut Butter Blondies

• 8×8-inch metal baking pan, Metal heats evenly and gives clean edges. Line with parchment paper for easy lifting.
• Parchment paper, Makes removing the blondies simple and prevents sticking.
• Spatula, A rubber spatula works best to combine the thick batter without overmixing.

Tips for Making the Best Flourless Peanut Butter Blondies

Stir the peanut butter very well before measuring, you want it drippy and creamy, not stiff. Use a metal pan for even baking; glass or ceramic may take longer and can overbrown the edges. Bake until the edges are golden and the center still looks slightly soft and underdone, it will set as it cools. Let the blondies cool completely in the pan before cutting, or they may fall apart. A sharp knife and clean cuts between each slice help keep them neat.

Expert Tips for Perfectly Chewy Blondies

Natural peanut butter can vary in oil content, if yours seems dry, add a teaspoon of oil (like coconut or avocado) to loosen it. Don’t overmix the batter once you add the eggs; stir just until combined to keep the blondies tender. The baking time window is narrow: at 20 minutes the center will be quite gooey, and at 25 minutes it’s more set but still soft. I aim for 22 minutes and check by touching the top, it should spring back slightly but feel soft underneath.

How to Get Clean Cuts from Your Peanut Butter Blondies

For neat squares, let the blondies cool completely, at least 1 hour, then refrigerate for 20 minutes before cutting. Use a sharp chef’s knife and wipe it clean between each cut. If you want extra-clean edges, run the knife under hot water and dry it off before slicing.

Easy Variations for Peanut Butter Blondies

If you don’t have peanut butter or need a nut-free option, you can swap in cashew butter, almond butter, or sun butter, just stir them well first. For the chips, try semisweet, milk, or dark chocolate, or even white chocolate or butterscotch chips for a different twist. For a fun color, fold in M&M’s instead of chips. And if you’re a peanut butter cup fan, chop some up and stir them into the batter before baking; you can also press a few extra on top.

What to Serve with These Peanut Butter Blondies

These blondies are fantastic on their own, but a scoop of vanilla ice cream or a drizzle of warm peanut butter takes them over the top. For a simple dessert plate, add a few fresh berries and a sprinkle of extra flaky salt. They also pair perfectly with a cold glass of milk or a cup of coffee.

How to Store Your Peanut Butter Blondies

Keep these blondies in an airtight container at room temperature for up to 3-4 days. They stay moist and chewy, though the tops may soften a bit. If you stack them, place a sheet of parchment between layers to keep the tops from sticking.

Can You Freeze These Flourless Peanut Butter Blondies?

Yes, they freeze beautifully. Let the blondies cool completely, then wrap each square individually in plastic wrap or place them in a single layer in a freezer bag. Label with the date and freeze for up to 3 months. To thaw, leave them at room temperature for about 30 minutes, or microwave briefly if you want them warm.

Best Ways to Reheat Peanut Butter Blondies

If you like warm blondies, pop one in the microwave for 10-15 seconds, just enough to soften the chocolate without melting the bar. For a slightly firmer reheat, place them on a baking sheet in a 300°F oven for 5 minutes. Let them sit a minute before eating so the chocolate isn’t scorching hot.

Flourless Peanut Butter Blondies FAQs