Natural, unsweetened cocoa powder is the least processed, most flavorful and healthiest form of chocolate. It has no sugar, no fat and a very bitter taste. Turning cocoa powder into chocolate fudge is a simple process involving the addition of sugar, dairy and flavorings, followed by melting the ingredients either on a stove-top or in the microwave. Its intense chocolate flavor and dark color is also well-suited to cookies and brownies.

Sift together the cocoa powder, sugar and salt, then add them to the butter, milk and vanilla in a microwave-safe glass bowl. Set aside 1 tsp. of butter for later use.

Microwave the fudge mixture on high for two minutes, then stir it. The batter should be a thick liquid so, if necessary, put it back in the microwave for an additional one to two minutes to reach that consistency.

Spread the reserved 1 tsp. of butter evenly in a 9-by-9-inch pan, then pour the batter into the pan.

Refrigerate the fudge for at least 90 minutes before serving it.