Yelapa-Style Banana Pie (Pay de Plátano de Yelapa)

Preheat oven to 375°F. Whisk together flour and 1/4 teaspoon salt in a medium bowl, and make a well in the center. Set aside.

结合butter, shortening, and 1/4 cup water in a small saucepan. Cook over medium-high, stirring constantly, just until butter and shortening are melted, about 2 minutes. Bring to a gentle simmer, and cook 30 seconds to 1 minute. Pour butter mixture into well in center of flour mixture. Working quickly, use a rubber spatula to stir mixture until a shaggy dough forms. Transfer dough to a clean surface, and knead until smooth, about 1 minute.

2. Combine butter, shortening, and 1/4 cup water in a small saucepan. Cook over medium-high, stirring constantly, just until butter and shortening are melted, about 2 minutes. Bring to a gentle simmer, and cook 30 seconds to 1 minute. Pour butter mixture into well in center of flour mixture. Working quickly, use a rubber spatula to stir mixture until a shaggy dough forms. Transfer dough to a clean surface, and knead until smooth, about 1 minute.

Place dough between 2 sheets of parchment paper, and roll into a 12-inch (1/4-inch-thick) circle. Remove top sheet of parchment; discard. Use bottom sheet of parchment to lift up dough circle, and carefully flip dough over into a 9 1/2-inch deep-dish pie plate. Remove and discard parchment. Patch tears in dough, if needed. Line pie dough with parchment, and fill with pie weights.

Bake in preheated oven until crust is set, about 18 minutes. Remove pie weights and parchment, and continue baking, pricking crust with a fork to deflate bubbles if needed, until crust is lightly browned, about 15 minutes. Transfer piecrust to a wire rack to cool completely, about 45 minutes.

Reduce oven temperature to 325°F. Line piecrust with banana slices. Whisk eggs in a medium bowl until completely blended. Add milk, condensed milk, vanilla bean seeds, and remaining 1/4 teaspoon salt; whisk until combined. Carefully pour milk mixture over bananas. Bake at 325°F until edges are set and center is slightly jiggly, 45 to 50 minutes. (Banana slices will rise to top during baking.) Transfer pie to a wire rack to cool.

If desired, sprinkle sugar evenly over top of pie. Using a kitchen torch, caramelize sugar. Serve immediately, or chill overnight.