Mix the dry ingredients together in a large bowl. Then cut the cold butter or lard into small chunks, and add it to the dry ingredients. Work the butter into the flour with your fingers, breaking it up and rubbing it in. Work quickly so the heat from your hands doesn't soften the butter too much. If you start to see any shine on your fingers or if the butter squishes easily (lard will generally be a bit squishy, but still look for it to get shiny), put it in the fridge for 30 mins. After a few minutes, you should have a crumbly mixture with pieces of butter no bigger than almonds (smaller is ok).
1 ½ cups flour, ½ teaspoon kosher salt, ½ Tbl sugar, 12 Tbl unsalted butter or lard, cold