Preheat the oven to 350 degrees Fahrenheit (175 degrees Celsius).
Line the cupcake forms with paper liners.
Wash the grapes thoroughly and cut them into four pieces each.
Set aside.
Separate the eggs, being careful that the yolk does not go into the whites.
In an electric mixer, whisk the egg whites on the highest speed until stiff. Set Aside.
Wisk the egg yolks with the blanched almond butter until well blended.
Add the honey, lemon juice, & rind and whisk until well blended.
On the same low speed, blend in the blanched almond flour and baking soda just until blended.
On the lowest speed, blend 3 tablespoons of the whisked egg whites into the mixture.
Manually fold the rest of the whisked egg whites with the egg yolk mixture just until blended.
Manually, gently fold in the pre-prepared grapes into the mixture.
Spoon the batter into the cupcake forms (lined with cupcake paper) ¾ full.
Bake for 20 minutes or until golden.
Store in the refrigerator.