A Delicious and Moist Coffee Cake

Ingredients

• 1 cup all-purpose flour
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/4 teaspoon ground cinnamon
• 1/4 teaspoon salt
• 1/2 cup unsalted butter, softened
• 1/2 cup granulated sugar
• 2 large eggs
• 1 teaspoon vanilla extract
• 1/2 cup plain Greek yogurt
• 1/2 cup chopped walnuts
• 1/4 cup packed brown sugar
• 1/4 cup ground coffee