Cut the bread into 2 - 3 cm or 1-inch thick slices. In a deep baking dish, combine the eggs, milk, whipping cream, salt, vanilla, and sugar. Beat with a whisk until you get a smooth mixture. Dip each slice of bread into the mixture separately. Before adding the next portion of bread, make sure to whisk the liquid mixture quickly. Leave the bread in the mix for a minute. The bread has to be coated all the way around and all the way through.TipIf you feel like you can't get the liquid all the way through the interior of the bread, then prick it a couple of times with a fork.
Place a large non-stick pan with the butter and clarified butter to medium-high heat. Using a spatula, transfer the french toast to the pan. Cook two slices of bread at a time, making sure not to overcrowd the pan. Cook for 4 minutes per side.TipFeel free to use vegetable oil or coconut oil instead of clarified butter.
Line a wire rack or a plate with paper towels. Place the cooked french toast on the towels to get rid of any excess oil. Divide the toasts between plates, and serve. Optionally dust with icing sugar, or drizzle with maple syrup. Serve warm or at room temperature.