Preheat oven to 325 degrees F. Grease bundt pan generously.
In a large bowl mix yellow cake mix, pudding mix and mix until well combined. In the same bowl, make a well in the middle and add eggs, milk and mix until well combined. Pour into bundt pan.
Bake for 40-50 minutes.
For glaze, in a medium sized pot and the heat over low-medium heat, add the sugar and whisk constantly for 3-5 minutes.
When sugar becomes slightly sticky, add butter and continue whisking until well combined, this will take about 4-5 minutes. Remove from the stove.
In the same pot, add heavy cream and stir until caramel is thick and cream. Pour glaze into a bowl and set aside to cool.
Pour the caramel glaze over bundt cake and sprinkle with sea salt.