Combine first 3 ingredients in the bowl attached to a stand mixer fitted with the dough hook and let stand until mixture bubbles.
Place milk in a large microwave safe mixing up and heat until foamy. Remove and place butter in the milk ,swirling until it's melted into the milk.
Cool the milk mixture to around 100°F . Beat the eggs and egg yolks together until light and creamy, then mix into the milk. Stir in the honey and salt until the salt has dissolved. Add to the yeast mixture.
Slowly add the 6 1/2 cups of flour, continuously mixing with the dough hook on medium speed. Combine completely, then let the dough hook knead the dough for an extra 4-5 minutes. Remove and place into large well oiled bowl . Cover with plastic wrap, and let stand 1 hour or until doubled in size.
Punch down dough. Turn dough out on a well-floured surface. Divide into two equal parts. Divide each of those pieces into 12 balls and roll until smooth in shape. Place 12 dough balls into each 9x13 pan. Cover and let rise in a warm place free from drafts, 1 hour or until doubled in size.
Pre-heat your oven to 400°F.
Mix together the 1/2 cup softened butter and 1/4 cup honey until completely incorporated.
Bake rolls for 14-15 minutes until very golden brown and the tops sound hollow when tapped. Remove from the oven and brush the tops with a fair amount of honey butter.