PREHEAT OVEN TO 350 degrees F. Get out a 9”x13” baking pan. (No need to grease it.)
COOK THE DATES: Combine the chopped dates, ½ cup of the brown sugar, and the water in a small saucepan. Cook over medium flame for about 5 minutes or until mixture boils and is thickened. Remove from heat; stir in vanilla and almond extracts. Set aside to cool.
MIX THE DRY INGREDIENTS: In a medium bowl, stir together the flour, oatmeal, the remaining 1 cup of brown sugar, baking soda, and salt. Stir in the melted butter and mix well.
ADD HALF OF THE FLOUR MIXTURE TO THE PAN (you'll use the other half for a top or third layer) and use a piece of plastic wrap or the back of a spoon to spread it in an even layer.
SPOON THE DATE FILLING in dollops on top of the flour mixture and spread it evenly with a rubber spatula.
STIR THE PECANS into the remaining flour mixture and sprinkle it evenly on top of the date mixture. It’s ok if it doesn’t cover all of the dates; just do your best to sprinkle it evenly.
BAKE FOR ABOUT 30 MINUTES or until edges and corners are crispy-brown and the center is just set. Set on a rack to cool before cutting into squares. To make the later cutting easier, I run a small sharp knife around the edges of the pan when it first comes out of the oven.Store for 3-4 days in a tightly covered container, placing waxed paper between the layers of cookies. Freeze for up to 2 months, thawing overnight on the counter before serving.