Blueberry Coffeecake

Blueberry coffee cake is the brunch standard for good reason. The buttery butter-cake base bakes around two cups of blueberries (fresh or frozen, both work) and gets crowned with a cinnamon-sugar streusel that crisps into a craggy, buttery topping during baking.

It’s the kind of cake that makes Saturday mornings feel like a celebration.

The alternating-addition technique (sifted dry ingredients added alternately with milk to the creamed butter and sugar) is what gives this cake its uniformly tender crumb. Dumping everything in at once would overdevelop the gluten and produce a tougher cake.

The alternating method keeps the gluten under control and ensures even hydration throughout the batter.

The blueberry-handling note from the recipe is genuinely useful: rinsing and patting dry frozen berries before folding them in keeps their juice from staining the entire batter blue. A light dusting of flour on the berries (not in the recipe but worth doing) helps suspend them throughout the cake instead of letting them sink to the bottom.

The streusel topping (just butter, sugar, flour, and cinnamon) goes on dry, not pre-mixed, so it stays crumbly during the bake.

Pro Tips

• Use room temperature butter and eggs for proper creaming. Cold butter doesn’t aerate; cold eggs cause the batter to seize.
• Toss the blueberries in 1 tablespoon of flour before folding in. This prevents them from sinking.
• Don’t overmix once the flour goes in. Overworked batter makes for tough, gummy cake.
• Test for doneness with a toothpick at 25 minutes. The streusel can fool your eye into thinking it’s done before the center sets.

Variations

• Add the zest of one lemon to the batter for a brighter, more aromatic blueberry pairing.
• Stir in a half cup of chopped pecans into the streusel topping for added crunch.
• Substitute fresh raspberries or blackberries for the blueberries for a different berry profile.