Sift flour, granulated sugar, baking powder and baking soda into large mixing bowl; set aside. Beat eggs, milk and vanilla in bowl with whisk until blended.
Add to flour mixture; mix well.
Heat about 3 inches oil to 375F in large saucepan or deep fryer. Slowly pour about 3 Tbsp. batter into hot oil in a free-form lattice pattern. Cook 30 sec. on each side or until golden brown on both sides.
Drain funnel cake on paper towels. Repeat with remaining batter, allowing oil to return to 375F between batches.