Protein brownies

• 1/2 cupnatural almond butter · runny, unsweetened, stirred well
• 1/3 cupmaple syrup
• 2 largeeggs · at room temperature
• 1/2 cupfull-fat plain Greek yogurt
• 1/2 cupunsweetened cocoa powder · Dutch-process for a darker crumb
• 2/3 cupchocolate whey or casein protein powder · about 60g, see note on whey vs plant
• 1/4 cupalmond flour
• 2 tspvanilla extract
• 1/2 tspbaking soda
• 1/4 tspkosher salt
• 1/3 cupdark chocolate chips · 70 percent, half in the batter, half on top

Method

1. 1

   Cocoa carries the chocolate, powder only carries the protein

   Half a cup of unsweetened cocoa is what makes these taste like brownies. Protein powder contributes protein and, past a certain ratio, a chalky dryness that nothing else in the bowl can fix. Sixty grams is the ceiling for a pan this size. Recipes that push it to a full cup are the reason people think protein brownies taste like a supplement, because at that ratio they do.

2. 2

   Almond butter and yogurt are the moisture insurance

   Protein powder absorbs a lot of liquid and keeps absorbing it as the pan cools, which is exactly why protein bakes go dry an hour after they come out. Half a cup of runny almond butter for fat and half a cup of full-fat Greek yogurt for moisture and a little more protein hold the crumb together on day two. Nut butter that has separated into oil and cement will not work, so stir the jar properly.

3. 3

   Whey and casein behave differently, plant protein differently again

   Whey isolate bakes driest and can turn slightly rubbery. Casein absorbs more liquid but stays softer and is the better choice here if you have it. A blend is ideal. Plant proteins, pea and rice in particular, are thirstier and grittier, so if that is what you have, add two extra tablespoons of yogurt and expect a denser, earthier brownie. Do not switch types without adjusting liquid.

4. 4

   Mix the wet fully, then stop mixing

   Whisk the almond butter, maple, eggs, yogurt and vanilla until completely smooth, which takes a minute of real effort because almond butter resists. Then sift in the cocoa, powder, almond flour, soda and salt and fold with a spatula only until no dry streaks remain. Protein batters toughen fast with overmixing, and the developed structure is what gives you a cakey brownie instead of a fudgy one.

5. 5

   Underbake deliberately, 22 minutes at 350F

   An 8-inch square pan lined with parchment, batter smoothed level, remaining chips scattered on top. Pull them when the edges are set and a skewer in the centre comes out with moist crumbs clinging to it, around twenty-two minutes. A clean skewer means you have gone too far. Protein bakes also carry over more than flour bakes, so they continue cooking in the pan for several minutes after they leave the oven.

6. 6

   The cooling hour is part of the recipe

   These are structurally soft when hot and they firm up into fudgy as they cool. Twenty-five minutes in the pan, then lift the parchment out onto a rack for another twenty. Cutting them warm gives you nine warm heaps rather than nine brownies. Chilling them for an hour after that makes them denser and more truffle-like, which is how they are best on day two and three.

7. 7

   Ten grams of added sugar, and where it comes from

   A third of a cup of maple across nine brownies plus a third of a cup of dark chocolate chips is about ten grams of added sugar each, against thirty to thirty-five in a standard bakery brownie. The cocoa, the vanilla and the salt are doing the work that sugar usually does. If you want them sweeter, add two tablespoons more maple rather than more chips, which change the texture.

8. 8

   Storage, and why the fridge is the right place

   Four days in a sealed container in the fridge, three months frozen cut into squares with parchment between them. The fridge is better than the counter here because the yogurt is in the batter and because cold makes them denser and fudgier, which suits them. A frozen one thaws on the counter in twenty minutes and is genuinely good straight from the freezer.