Absolutely. You'll just want to keep an eye on it so it doesn't burn. You can also butter each side of the bread with your favorite vegan butter or brush it with olive oil before toasting. For the air-fryer method, set the temperature to 400 degrees Fahrenheit and toast the bread for about 4 minutes, flipping halfway through. For the oven method, heat the oven to 425 degrees Fahrenheit and toast for about 8 minutes.