In a skillet, saute the mushrooms and onions in 1 tablespoon spread until sensitive. In an extensive bowl, combine the flour, getting ready powder and salt.In another bowl, unite eggs and cheeses. Mollify staying spread; add to egg mix. Blend into dry fixings nearby mushroom mix.Fill lubed bread mugs three-fourths full. Get ready at 350° for 35-40 minutes or until the point that a sharp edge implanted in the center comes clean. Meticulously run the cutting edge around edge of roll glasses before removing. Yield: 2-1/2 dozen.