Blueberry Muffins Crumb Topping (Print Version)

# Ingredients:

→ Crumble Topping

01 - 1/4 cup melted butter (unsalted or salted)
02 - 1/2 teaspoon cinnamon (ground)
03 - 1/2 cup white sugar (112g)
04 - 1/2 cup plain flour (72g)

→ Muffin Mix

05 - 2 cups blueberries (can be fresh or frozen)
06 - 1 large egg
07 - 1/4 teaspoon kosher salt
08 - 1/3 cup melted butter (unsalted, about 5 tablespoons)
09 - 1.5 cups all-purpose flour (212g)
10 - 2 teaspoons baking powder
11 - 3/4 cup sugar
12 - 2/3 cup buttermilk
13 - Zest from 2 meyer lemons (or 1 orange and 1 lemon combined)

# Instructions:

01 - Turn your oven on and set to 375°F. Put paper liners in a muffin tray.
02 - Use a small bowl to combine cinnamon, sugar, and flour. Stir melted butter in with a fork until crumbly bits form. Keep it cold in the fridge.
03 - Take a big bowl and toss together flour, sugar, baking powder, salt, and citrus zest.
04 - In another bowl, mix melted butter, egg, and buttermilk. It's okay if it looks split.
05 - Pour the wet mix into your dry ingredients. Gently mix until it's thick and bumpy—don’t overwork it.
06 - Carefully fold the blueberries into the batter. Stir just enough to spread them around—overdoing it might turn your batter purple.
07 - Grab a 3-tablespoon cookie scoop and portion the batter into the lined muffin cups.
08 - Break apart the chilled topping with your fingers and sprinkle it over the batter in each cup.
09 - Pop them in the oven for 28-30 minutes. They're done when the topping turns golden and the muffins feel springy.
10 - Muffins are tasty warm, but their flavor shines after a 2-hour rest.

# Notes:

01 - Both fresh and frozen blueberries work fine.
02 - Customize zest with meyer lemons, regular lemons, or oranges.
03 - The batter should stay thick and clumpy—don’t overdo the mixing.