Non-Fat Blueberry Muffins

Blueberry muffins without the butter usually means muffins without the joy. This recipe figures out how to keep them tender anyway, using four egg whites for structure and a generous pour of skim milk to hydrate the crumb where fat normally would.

The key move is treating it like a quick bread, not a cake. Sift the dry ingredients to aerate the flour, then fold in the wet just until combined. Lumpy batter is correct here, not a problem. Over-mixing develops gluten and turns low-fat muffins into rubber pucks.

Gently folding blueberries at the end keeps them whole and stops the batter from going purple. Frozen berries work but don’t thaw first or they bleed. A hot oven at 400°F (200°C) gives the tops a good rise and a tender crumb.

Pro Tips

• Toss blueberries in a teaspoon of flour before folding. This keeps them suspended instead of sinking.
• Fill cups two-thirds full for properly domed tops with no overflow.
• Test doneness with a toothpick in muffin, not in a berry. Wet berry juice will fool you.
• Cool five minutes in the pan, then transfer to a rack so the bottoms don’t steam soggy.

Variations

• Add 1 teaspoon lemon zest to the batter for a brighter berry flavor.
• Sprinkle tops with coarse sugar before baking for a bakery-style crunch.
• Swap half the flour for whole wheat for a heartier crumb.