National Coffee Cake Day is the perfect excuse to enjoy a slice of this classic treat. With its soft texture and sweet, crumbly topping, ... Lemon Blueberry Coffee Cake.

Combine the lemon juice and sugar in a small saucepan over medium-low heat and whisk until the sugar dissolves. Remove from the heat. Set aside 1 to 2 tablespoons for the whipped cream (optional).

Syrup: 1/4 cup fresh lemon juice 1/4 cup sugar. Heat a conventional oven to 350-degree (or a convection oven to 325 degrees). Grease a 9-inch springform pan and line with parchment.