Whisk flour, baking powder, and spices in a bowl
Grate butter into mixture, stirring every few grates
Add oil and water (actual ice water, but ice doesn't count toward your 1/4 cup)
Knead dough together
Wrap in plastic wrap in disc shape and refrigerate 10-15min
Dust surface with flour, place dough, dust more flour on top, and roll into a thin dough
Use a 1 3/4 crinkle cookie cutter to cut cracker shapes
Re-roll dough again and cut out shapes until all dough is used
Place crackers on parchment paper lined baking sheet
Use a fork or toothpick or poke holes in crackers
Bake at 375 for 7-9 min until golden
Brush with melted butter and sprinkle sea salt over finished crackers
Store in airtight container. After a day or two they might soften, so place in air fryer for 3ish min to crisp them back up before enjoying