1. Place rack in upper third of oven and preheat oven to 350°F. Spray doughnut pan with non-stick cooking spray.
2. In a large mixing bowl, whisk together flour, sugar, pudding mix, baking powder, baking soda and salt. In a small separate bowl, combine buttermilk, egg, canola oil and almond extract. Pour over dry ingredients and mix just until combined, being careful not to over mix. The batter will be thick and stiff. Toss pistachios with 1 teaspoon flour, then gently fold into batter.
3. With a small spoon, scoop batter into prepared doughnut pan until each “well” is 3/4 full, then smooth out surface. Bake for 10-12 minutes, until a toothpick inserted in center comes out clean and  doughnut springs back lightly when touched. Let cool in pan on a wire rack for 10 minutes, then removing from pan to cool completely.
4. Prepare glaze: In a medium bowl whisk together powdered sugar, honey, milk and salt until smooth. Add more milk, 1 teaspoon at a time, as necessary to create a thick but still pourable glaze. Once doughnuts have completely cooled, dip them top-side down into glaze.  Return doughnuts to wire rack and sprinkle immediately with chopped pistachios. Allow glaze set and serve.

Storage Tip: Store in an airtight container at room temperature for up to 3 days. Divide any stacked doughnuts with layers of wax paper.