Complex sentence: The company was founded by Dr. August Oetker in 1891; the first product developed was "Backin", a pre-measured amount of baking powder that, when mixed with 500g of flour and other ingredients, produced a cake.
Split into simpler sentences: The company was founded by Dr. August Oetker in 1891. The first product developed by Dr. Oetker was "Backin", a pre-measured amount of baking powder that, when mixed with 500g of flour and other ingredients, produced a cake.