Combine the dry ingredients in a large bowl.
Whisk together the milk, egg yolks, oil, lemon juice and vanilla. Add to the dry ingredients and beat until nice and smooth.
In a separate bowl, whip the egg whites until soft peaks form. Gently fold the egg whites into the batter. The batter will gain quite a bit of volume at this point.
Coarsely chop the strawberries. You want nice big chunks in the fritters. Fold the strawberries gently into the batter.
Stir up the strawberry preserves so they are nice and loose. Swirl the preserves in the batter.
Heat oil to 375 degrees in a deep, heavy saucepan. Drop a couple tablespoons of batter into the hot oil and fry for 4 to 5 minutes, or until golden brown. I used an ice cream scoop for mine. You want the fritters to have enough time to cook all the way through without burning the outside
Fry up a test fritter and make adjustments to size and temp as needed.
Remove the fritters from the hot oil and drain on paper towels. You can keep the fritters warm in the oven – just set on a low temperature. Serve hot!
Top with powdered sugar or a light glaze for yummy perfection!