Just the thought of apple pie sounds great but then throw in the raisins.....superb. Let me know what you think, I know I can't wait." Mix first 3 ingredients. Toss with apples and lemon juice. Add raisins. Toss again. Place in pastry lined pie plate. Dot with margarine. Cover with top crust. Seal and flute edge. Cut slits in top.
Preheat oven to 450 degrees. Place one crust in a 9 inch pie pan. Mix apple slices and raisins and place in pie shell. Sprinkle with lemon juice. Mix remaining ingredients (not Icing) and sprinkle on top of apples and raisins. Dot with butter if desired and place 2nd crust on top. Crimp or flute edges as desired.
Make the keto apple pie filling. First you’ll bloom a bit of gelatin (this helps thicken the low carb pie filling!) in a small bowl with water. Cook some butter, powdered sweetener, lemon juice, cinnamon, nutmeg, and cardamom together. Then, whisk in the gelatin mixture and simmer until the mixture has thickened, as pictured below.
Stir in apple cider vinegar (or lemon juice) and apple flavoring. Set aside and let cool. Add the keto apple pie filling to your pie pan on top of the bottom crust. Roll out the second layer of pie crust similar to step 3. Place on top of pie filling or cut out lattice strips and drape on top. Brush top crust with egg wash.