Coffee Cake with Streusel Topping Recipe - Petite Panini

Ingredients

• 1/2 cup brown sugar
• 1/2 cup all-purpose flour
• 1 tsp ground cinnamon
• 1/4 cup unsalted butter
• 1 1/2 cups all-purpose flour
• 1 tsp baking powder
• 1/2 tsp baking soda
• 1/4 tsp salt
• 1/2 cup unsalted butter
• 3/4 cup granulated sugar
• 2 large eggs
• 1 tsp vanilla extract
• 1/2 cup sour cream
• 1/4 cup whole milk