PREP: Set out the cream cheese to warm to room temperature. Preheat the oven to 350 degrees F. Line an 8x8-inch baking pan with parchment paper -- otherwise, your cake will likely not come out easily. Greasing and flouring the pan isn't enough -- this batter is sticky and needs parchment paper. Foil will affect baking, so I don't recommend foil.
WETINGREDIENTS: In a large bowl, stir together the applesauce, coconut oil (measured when completely melted and then cooled back to room temperature-- See Note 1), large egg, vanilla extract, and brown sugar. Stir until completely combined and smooth.
DRYINGREDIENTS: Add the baking soda, baking powder, salt, cinnamon, allspice, and nutmeg (you can use a little less or more, depending on your preference). Add in the oat flour. (SeeNote 2.) Add in the chopped pecans and raisins if desired. Mix ingredients until completely combined and smooth.
BAKE: Transfer batter to the prepared 8x8-inch pan. Bake for 28-33 mins at 350 degrees F oven or until a fork when inserted comes out clean. Be careful not to over-bake, as it will make this cake less tender and less flavorful. Allow cake to cool completely before frosting.
FROST: Place softened cream cheese in a large bowl (give it ample time to set out so your frosting isn't chunky). Using a hand mixer, beat the cream cheese with the vanilla until smooth. Add in the salt and slowly add in the powdered sugar (beating in between additions) until smooth and creamy and to your desired consistency. If it is too thick, add in a little bit of milk. If you'd like a tangier or soft frosting, only add 1 and 1/4 cups powdered sugar. For a sweeter, thicker frosting, add closer to 1 and 3/4 cups.
DECORATE: Frost the completely cooled cake evenly with the frosting. If desired, top the frosting with the chopped pecans.
STORAGE: Store cake at room temperature, covered with plastic wrap. Applesauce Cake is best when used within 1-2 days. Freeze (un-frosted) pieces for up to 3 months; thaw at room temperature and then frost. Frosted cake doesn't freeze and thaw well.
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Notes
Note 1: The coconut oil needs to be melted, but if it's hot, it will get chunky when added with other cold ingredients. Give it time to come to room temperature before adding it in with the other ingredients.Note 2: Make oat flour by blending (or pulsing) regular old-fashioned oats or quick oats in a blender or food processor until they resemble flour. Blend well so you don't have any large oat chunks in the cake. Measure oat flour after blending and not before.