1/4 teaspoon vanilla
3 tablespoons dark brown sugar
5 tablespoons rye flour
1/4 teaspoon baking powder
1/4 teaspoon each cinnamon and ginger
2 pinches cloves or allspice
pinch of salt
In a small dish, melt butter in microwave. Add honey and beat with a fork. Add egg, brown sugar, and vanilla and mix well. Scoop flour into a measuring cup and mix in baking powder and spices. Add dry ingredients to the wet ingredients and mix until smooth.
Pour batter into two lightly greased ramekins and sprinkle a few walnut pieces on top. Cover with parchment paper. Microwave for 90 seconds and check cakes. If not yet firm, microwave for 10 seconds more and check again. Repeat if necessary. Let cool on a rack and unmold.