In a small pan, heat cubed butter gently over low heat. Use spatula or wooden spoon to stir butter to help it melt evenly. When butter melted completely, raise the temperature to medium high. Make sure to keep eyes on your butter pan all the time. Scrape the sides and bottom to prevent butter from burning. When the butter starts to foam, give it a stir. Butter starts to turn brown at this point, to check the color, you can scoop a little amount onto a white plate to see. When you’re happy with the level of browning butter, transfer it right away to a heatproof bowl, keep stirring to cool down butter. Hot melted brown butter can be used immediately or store in an air tight container in a cooler for future use.