Put first butter, cream cheese and peanut butter into a microwave safe bowl, and microwave until butter is melted then whisk together until well combined.
Add cocoa powder, splena and vanilla and whisk until smooth.
Pour into a foil-lined 8x8 pan, and refrigerate until set.
Recipe by Keto Diet Cooking -Keto Diet Recipes and More at https://ketodietcooking.com/chocolate-peanut-butter-fudge/