Mini Orange Bundt Cakes - Olga's Flavor Factory

Ingredients

• 18 Tablespoons butter, softened
• 3 cups flour
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/4 teaspoon salt
• 1 - 1 1/2 cups sugar
• 3/4 cup buttermilk
• 4 Tablespoons orange juice, 1 1/2 Tablespoons orange zest
• 1 teaspoon vanilla
• 3 whole eggs plus 1 egg yolk
• 2 cups confectioner's sugar
• 2-3 Tablespoons orange juice, plus 1/2 Tablespoon orange zest
• 1 Tablespoon buttermilk