These cinnamon streusel muffins are one of my favorite breakfast treats. They taste like moist cinnamon coffee cake muffins with a buttery, crunchy cinnamon streusel topping. These are perfect for breakfast or a quick snack when you're about to head out the door to take on the go.
Line every other cup of a muffin pan with liners and set aside. Preheat a conventional oven to 425°F/220°C.
For the streusel, whisk melted butter, flour, brown sugar, and cinnamon in a small bowl until crumbly. Place in the freezer while you make the muffin batter.
48 grams unsalted butter, 90 grams all purpose flour, 80 grams brown sugar, ½ teaspoon ground cinnamon
Muffins
In a large mixing bowl, whisk the melted butter, sugar, eggs, and vanilla extract together until well combined.
Add the Greek yogurt and whisk until smooth with no lumps.
170 grams plain Greek yogurt
Fold the flour, baking powder, baking soda, salt, and cinnamon into the wet ingredients with a rubber spatula until the dry streaks of flour disappear.
226 grams all purpose flour, 1 teaspoon baking powder, 1 teaspoon baking soda, ½ teaspoon salt, 1 tablespoon ground cinnamon
Spoon 1 teaspoon of the cinnamon streusel into the bottom of each muffin liner. Add a tablespoon of muffin batter over the top of it, followed by another teaspoon of streusel.
Fill the muffin liners to the top with batter and generously sprinkle streusel and coarse sugar (optional) on top.
Bake the muffins at 425°F/220°C for 5 minutes. Then reduce the heat to 350°F/180°C and bake for 11-14 more minutes until a toothpick inserted in the center comes out clean with a few moist crumbs attached.
Allow the muffins to cool in the pan for 5-10 minutes, and then carefully transfer them to a wire cooling rack. Let cool completely and enjoy!
Video
Notes
Storage: Store muffins in an airtight container at room temperature for 2-3 days.Freezing: Place the cooled muffins in a freezer-safe container or bag and freeze for up to 3 months. Let thaw in the refrigerator overnight or on a plate at room temperature for a few hours before eating.