Good-Cooking - Strawberry Marshmallow Cake

Ingredients

• (10 ounce) packages frozen sliced strawberries
• 1 small box strawberry gelatin
• 1/2 teaspoon salt
• 2 1/4 cups all-purpose flour
• 1 1/4 cups granulated sugar
• 1/2 cup shortening
• 3 teaspoons baking powder
• 1 cup milk
• 1 teaspoon vanilla extract
• 3 eggs