Gluten-Free Cinnamon Walnut Coffee Cake

Recipe
Pan size 4”-10 cm

Ingredients:
4 Large Eggs Room Temperature
9.5 oz/270g Sugar
1 Tsp Vanilla Extract
270 mL Vegetable Oil
4.8 oz/135g Sour Cream
8.5 oz/240g Gluten-Free Flour
1.4 oz/40g Cornstarch
2.1 oz/60g Potato Starch
0.4 oz/10g Baking Powder

0.3 oz/8g Cinnamon
2.5 oz/70g Chopped Walnuts