Preheat your oven to 350F and grease a square baking dish
In a large bowl, make the crust by beating the butter, sugar, and vanilla with an electric mixer until it’s well blended
Use the lowest speed on the mixer to beat in the flour until it makes a soft dough that may be slightly crumbly
Press the dough into the bottom of the greased pan and bake for about 15 minutes, until the center is set
Filling
Chop the figs into small pieces
While the crust is baking, add the figs to a medium saucepan with the sugar and water
Heat the figs over high heat for about 10-12 minutes making sure to stir frequently so they don’t stick to the pan until most of the liquid has absorbed
Once the crust is set and cools for a few minutes, spread the fig mixture over the crust
Streusel
In a medium bowl, use a pastry blender (or two butter knives) to cut the cold butter into the flour and brown sugar then stir in the oats
Sprinkle the topping over the figs and bake for about 15-20 minutes
Let the bars cool completely, usually about one hour, before cutting into bars