Fat-Free Peach and Berry Cake

Ingredients

• eggs - 5 pcs.
• brown sugar - 3.5 oz (100 g)
• white sugar - 3.5 oz (100 g)
• yogurt - 9 oz (250 g)
• natural corn flour - 1.8 oz (50 g) + 1 tsp. for the fruit
• gluten - free flour - 8.5 oz (240 g)
• baking soda - 1/2 tsp.
• baking powder - 2 tsp.
• salt - 1 tsp.
• vanilla - 2 pcs. (0.2 g each) or essence 1 tsp
• orange peel - from 1/2 orange
• blueberries - 3.5 oz (100 g)
• raspberries - 1.8 oz (50 g)
• peaches - 2 pcs.
• powdered sugar - for sprinkling