01 - Preheat oven to 375°F. Line a baking sheet with parchment paper.
02 - In a large bowl, whisk together flour, cornmeal, baking powder, chili powder, cumin, smoked paprika, garlic powder, onion powder, and salt until well blended.
03 - Add olive oil and water to the dry mixture. Mix thoroughly until a cohesive dough forms. Add additional water one teaspoon at a time if dough appears too dry or crumbly.
04 - Lightly dust a clean work surface with flour. Roll out dough to approximately 1/8-inch thickness, ensuring even consistency throughout.
05 - Using a sharp knife or pizza cutter, slice dough into 1-inch squares. Alternatively, use small cookie cutters to create desired shapes.
06 - Transfer cut crackers to the prepared baking sheet, leaving slight space between pieces. Sprinkle evenly with shredded cheddar cheese and dried oregano if desired.
07 - Bake for 12 to 15 minutes until crackers develop a golden color and achieve crisp texture. Remove from oven and allow to cool on baking sheet for 5 minutes before transferring to wire rack for complete cooling.
08 - Keep cooled crackers in an airtight container at room temperature for up to one week to maintain optimal crunchiness.