Lemon Raspberry Gooey Butter Cake

Ingredients

• 1 1/2 cups all purpose flour
• 3/4 teaspoon baking powder
• 3/4 teaspoon baking soda
• 3/4 cup sugar
• 1 1/2 sticks unsalted butter (at room temperature)
• 1 teaspoon vanilla extract
• 1 large egg plus 1 yolk
• Zest of two lemons
• 1/2 teaspoon lemon extract
• 2 tablespoons lemon juice
• 6 tablespoons real raspberry preserves
• 1 lemon (sliced thinly into circles for garnishing)
• 1/2 cup powdered sugar
• 1 tablespoon water
• 2 tablespoons lemon juice
• zest of 1 lemon