Upside-Down Strawberry Shortcake

Ingredients (12)

• 1 cup miniature marshmallows
• 1 package (16 ounces) frozen sweetened sliced strawberries, thawed
• 1 package (3 ounces) strawberry gelatin
• 1/2 cup shortening
• 1-1/2 cups sugar
• 3 large eggs, room temperature
• 1 teaspoon vanilla extract
• 2-1/4 cups all-purpose flour
• 3 teaspoons baking powder
• 1/2 teaspoon salt
• 1 cup 2% milk
• Fresh strawberries and whipped cream