1 Pour the cold milk into a mixing bowl. If you are using a smaller packet of instant pudding mix, about 3.4 ounces (96 grams), use 2 cups (475 milliliters) of milk. If you are using a larger packet of instant pudding mix, about 5.1 ounces (144 grams), use 3 cups (700 milliliters) of milk.

2 Tear open the instant pudding mix and pour it into the bowl. Most of the pudding will float on top. You may notice the milk changing color as the powder starts to dissolve.

3 Mix the two together with a whisk until the pudding thickens, about 2 minutes. You can also use a handheld mixer or a food processor. There should be no lumps or clumps of pudding mix by the time you are done.