Keto Strawberry Shortcake

Name: Keto Strawberry Shortcake
Prep time: 20 min
Cook time: 15 min
Total time: 35 min
Cuisine: American
Ingredients: 1 ½ cups of sliced strawberries; 2 cups super fine almond flour; 1 cup monk fruit/allulose granular; ⅔ cup sour cream; ½ cup butter (room temperature); ⅓ cup oat fiber (see notes); 4 whole eggs (separated); 1 ½ tablespoons baking powder; 1 teaspoon vanilla extract; 1 ½ teaspoons lemon juice; ¼ teaspoon fine sea salt; 2 cups heavy cream (cold); 4 ounce mascarpone cheese (or cream cheese); ½ cup monk fruit/allulose confectioners; ½ teaspoon vanilla extract