Pre-heat oven to 160C. <Your oven may need a higher temperature of 170C or 180C - do adjust accordingly. >
Use a mixer to cream butter, sugar and orange rind. Remember the butter should be at room temperature.
Add in eggs one by one and continue to mix.
Add in sifted flour and orange juice. Continue to mix until well combined.
Pour into cake pan and bake for 50mins - 1 hr 10 mins. I bake mine for 50 mins.