In a large mixer bowl, combine 2 cups of flour, yeast, sugar and salt; mix well. In a saucepan (or microwave) heat 7-up, water, and butter until warm (120-130~); butter need not melt. Add to flour mixture. Add egg and yolks. Blend at low speed until moistened; beat 3 minutes at medium speed. By hand, gradually stir in enough remaining flour to make a soft dough. Knead on floured surgace until smooth and elastic, 3-5 minutes. Place in a greased bowl, turning to grease top. Cover with plastic wrap and foil. Refrigerate 4-24 hours. While dough is chilling, punch down several times. Remove desired amount of dough; refrigerate remaining dough until needed, shape into any of the four following coffecake recipes that will be posted under this subject. ----