For the most intense pistachio flavor, consider lightly toasting the peeled pistachios in a dry skillet over medium-low heat for a few minutes, until fragrant, before blending. Be careful not to burn them. High-quality white chocolate will yield the best flavor and texture. Avoid using white chocolate chips that contain artificial ingredients. If you don't have almond extract, you can substitute with an equal amount of vanilla extract, or omit it altogether. The consistency of the pistachio cream will thicken as it cools. Adjust the amount of milk to reach your desired consistency. This pistachio cream is delicious served with fresh fruit, pastries, ice cream, or simply enjoyed on its own.