Bread-Bakers v105.n005.2

Does anyone have a good trick to get very moist bran muffins?
I've been using this recipe as a base and its OK but lacks real moisture:

BRAN MUFFINS
1 cp fl
1 cp bran
1 egg
1 cp mlk
2 tbs but
splash vanilla
sprinkle cinammon
1 tsp bak powd
1 tsp bak soda
1/4 cp sug
1/ tsp slt

Thanks so much for your wonderful comments.
Mike in Havana

PS. Try this: "Sprouted lentil-carrot honey loaf"
It's full of Vit C, A, iron and fructose.
People love it...