Crack eggs into a mixing bowl. Beat with a rotary beater or fork until yolks and whites are mixed together. Add milk and, if you like, cinnamon. Beat until ingredients are well mixed. Pour egg mixture into a pie plate.
Put half of the butter in a skillet. Put the skillet on a burner. Turn the burner to medium heat and let the butter melt.
Dip 1 slice of bread into egg mixture. Turn bread over with a pancake turner to coat the other side. Put coated bread in skillet. Repeat with second slice of bread.
Cook until bottoms are light brown. (To check, lift bread with pancake turner and peek underneath.) This will take 1 1/2 to 2 minutes. Turn bread over. Cook until second sides are light brown (about 1 1/2 to 2 minutes more). Remove bread from the skillet.
If necessary, put remaining butter in the skillet. Repeat Steps 3 and 4 with remaining bread and egg mixture. Turn off burner. Remove skillet from burner. If you like, serve French toast with fresh fruit and sprinkle with powdered sugar.
Serve with a drizzle of syrup, bacon strips, and a glass of milk. *NOTE: If you don't use firm-textured bread, such as French bread, cover bread slices with paper towels and let them stand out on a counter for several hours or until they are dry.