Preheat oven to 350°F and grease a 13x9-inch baking dish with cooking spray.
In a stand mixer, cream sugar, oil, eggs, and vanilla with paddle attachment on low speed for about 30 seconds.
In a separate bowl, whisk together flour, baking powder, baking soda, and salt.
Gradually add dry ingredients to the wet mixture until smooth and fully combined.
Pour batter into prepared baking dish and bake for 25 - 35 minutes, or until a toothpick inserted in the center comes out clean.
If top browns too quickly, cover loosely with foil.
Let the cake cool for 15 minutes, then poke holes all over the surface.
In a small pot, heat milk until warm (not boiling), then steep chamomile tea bags for 5 minutes.
Remove tea bags and stir in evaporated milk and sweetened condensed milk.
Slowly pour this mixture over the entire cake.
Cover and refrigerate for at least 8 hours or overnight to let the milk absorb.
Just before serving, whip heavy cream and sugar in a stand mixer until stiff peaks form (about 2 minutes).
Spread whipped cream evenly over chilled cake and top with fresh strawberry slices.
Enjoy!