Why can't I get cake to release from pan, even after using spray with flour?

Baking soda.

Coat the pan with butter or margarine.

brush a little butter inside and make sure it is hot enough before adding eggs. Bakers use a margarine/shortening blend then dust with flour before adding cake batter etc. Pam spray acts the same using oil coated flour, but may add odours/flavours.

oil spray or best thing I do is regardless of what my bakeware is I always put baking paper in then lightly spray keeps bakeware in good condition and just in case you dont quiet butter every inch

Try this recipe. It's a very simple cake but has a yummy frosting that my kids love.

http://www.countryliving.com/recipefinder/basic-vanilla-cake-69

You must make sure that you grease your pan really generously before you put the batter in. You can use either a vegetable shortening or a cooking spray.

Once you take your cake out the oven, give it about ten minutes to cool down before tipping it onto a surface to cool. Sometimes if cakes are left in the tin too long after cooking it causes them to stick.

I have the recipe for yellow cake from the handbook:
preheat over for 15 minutes and spray pans with cooking spray

1. pour contents of yellow cake mix into bowl and stir to break up any lumps. 2. add 1.5 teaspoons of water and stir to form batter 3. pour batter into baking pan and spread evenly. 4. place pan in baking slot of oven and use pusher end of pan tool to push it into baking chamber. Do not use your hands. 5. bake cake for 12 minutes. 6. when baking time is complete, use pusher end of pan tool to push pan into cooling chamber and let cool for 10 minutes. 7. when cooling time is complete, use holder end of pan tool to remove pan from cooling chamber. Transfer cooled cake to a plate, turning over so bottom faces up.
frosting 1. pour contents of frosting mix into bowl. 2. add 1/2 teaspoon of water and stir until smooth. For thinner frosting, stir in a few extra drops of water. 3. spread frosting over cooled cake.
Sugar Cookies
1. pour contents of sugar cookie mix into bowl and stir to break up any lumps. 2. add 3/4 taespoon of water and stir to form dough. 3. sprinkle your hands with flour and shape dough into 6 small balls. 4. flatten 3 cookie balls and place in baking pan. 5. place pan into oven and use pusher end of pan tool to push into oven. Make sure both metal doors are closed. 6. cook for 10 minutes. 7. when baking time is complete, use pusher end of pan tool to push pan into cooling chamber and let cool for 10 minutes. 8. when cooling time is complete, use holder end of pan tool to remove pan from cooling chamber. 9 repeat steps 4-8 to make remaining 3 cookies.
those were the basic recipes in the handbook. Hope that helps

This is just one of many I found at this website http://www.lynettee.com/kidfood10.htm

Children's Chocolate Cake Mix
1 cup sugar
3 tablespoons unsweetened cocoa powder
1 1/2 cups all-purpose flour
1 teaspoon baking soda
1/2 teaspoon salt
1/3 cup vegetable shortening
In a medium bowl, combine sugar, cocoa powder, flour, baking soda and salt. Stir with a wire whisk until blended. With a pastry blender, cut in shortening until evenly distributed and mixture resembles corn meal. Spoon about 1/3 cup of the mixture into each of 11 small containers with tight fitting lids or Ziploc bags. Seal containers. Label with date and contents. Store in a cool dry place. Use within 12 weeks. Makes 11 packages of Children's Chocolate Cake Mix for Easy Bake style oven.

To Use:
1 package cake mix
4 tsp. water
Mix together and stir with a fork or spoon until blended and smooth. Pour mixture into greased and floured 4 inch round miniature baking pan. Follow directions for child's oven, or bake in mom's preheated 375* oven for 12 to 13 minutes. Remove from oven and cool in pan on a rack for 5 minutes.
Invert onto a small plate and remove pan. When cool, frost with Children's Chocolate Frosting. Serves 2 children.

Enjoy!