Bakery-style streusel topped muffins full of three kinds of fresh berries. Absolutely delicious!
Preheat oven to 350 degrees. In a stand mixer or large bowl, beat together the btuter, eggs, and sugar until fluffy. Add the flour, vanilla, baking soda and beat until well mixed. Add milk and lemon zest, beating until batter is smooth. Fold in raspberries, blueberries, and blackberries. Spoon into a well-greased or cupcake paper-lined Good Cook 6-Cup Texas Muffin Pan. In a small bowl, use a fork to mix together the streusel mixture until crumbly. Sprinkle on top of each muffin. Bake in preheated oven for 23-27 minutes